diff --git a/pkgs/development/compilers/gcc/common/pre-configure.nix b/pkgs/development/compilers/gcc/common/pre-configure.nix
index e386693b22c7a..5a74c5647293a 100644
--- a/pkgs/development/compilers/gcc/common/pre-configure.nix
+++ b/pkgs/development/compilers/gcc/common/pre-configure.nix
@@ -108,7 +108,10 @@ in lib.optionalString (hostPlatform.isSunOS && hostPlatform.is64bit) ''
 # gcc->clang "cross"-compilation manages to evade it: there
 # hostPlatform != targetPlatform, hostPlatform.config == targetPlatform.config.
 # We explicitly inhibit libc headers use in this case as well.
-+ lib.optionalString (targetPlatform != hostPlatform && withoutTargetLibc) ''
++ lib.optionalString (targetPlatform != hostPlatform &&
+                      withoutTargetLibc &&
+                      targetPlatform.config == hostPlatform.config &&
+                      (stdenv.cc.isClang || stdenv.targetPlatform.useLLVM)) ''
   export inhibit_libc=true
 ''